Incinerator



Dec. 19, 1922.

P. F. MCMAHON.

`lnlcnvsfzmma. mso Ha. 2s. 1922.

3 SHEETS-SHEET I.

latrnntedl Der. i9, 1922.

. entre sfraras l raars Parent orties.

PATBICK FRANCIS MCIVIAHGN, BEIHLEHEM, PENNSYLVANIA.

INCINERATOR.

Application filed February 25, 1922. Serial No; 539,241.

To all whom t may concern:

Be it known that I, PATRICK F. MGMAHON, a citizen of the United Statcs,and a resident of Bethlehem, in the county of Northampton and State of Pennsylvania, have invented a new and lmproved Incinerator, of which the following is a full, clear, and exact de- `scription.

- supporting means arranged therein to act as a container for the waste matter to be reduced whereby the same may be periodically voscillated to dislodge the ashes .and present new layers or strata of the mass to the action ofthe heat and flame.

Some of the general objects of the present invention reside in the provision of an incinerator which is comparatively simple in its construction; which will effect consumption of the waste matter in a comparatively short space of time, and which will eliminate waste of energy by allowing the moisture and gases to pass off through the draft stack or chimney by the natural draft without attempting to consume the same.

As a further object theinvention contemplates means for preheatin'g or drying the waste mass prior to its actual reduction in order to facilitate more rapidly the reducing action.

As a still further obj ect the invention contemplates a novel means for supporting and agitating thev waste matter periodically to insure its complete reduction.

Furthermore the invention contemplates as an object a structure which readilyl admits of repairs ata minimum expenditure.

With the above recited andother objects in view, the invention resides in the novel lconstruction set forth in the following specification, particularly pointed out in the appended claims-and illustrated in the accompanying drawings, it being understood that the right is reserved to 'embodiments other than those actually illustrated herein tothe full lextent indicated by the 'general meaning of the terms in which the claims are expressed.

In thedrawings- 2 l i f Figure 11 is a sideelevation of'theincinverator constructed `in accordance with the invention. I

F 1g. 2 1s a vertical sectional vlew therethrough taken approximately on the line 2-2 ofl Fig. 4.

Fig. 3 is a front elevation thereof.

Fig'. 4 is a vertical transverse sectional view taken approximately on the line 4 4 of Fig. 2.

Fig. 5 is a horizontal sectional view taken on the line 5 5 of Fig. 2. l

Referring to the drawings by characters of reference, the furnace which is preferably lof rectangular' formation is provided with.

front and rear walls 10 and`11, side walls 12 and a top wall 13. The furnace is divided into an upper reduction chamber 14 and a lower fuel combustion chamber 15, said combustion-chamber having mounted therein any suitable type of grate 16 providing therebeneath an ash pit 17. A stoke door 18 is providedin theffront wall 10 and communicates with the combustion chamber.' A. clean-out door 19 is provided in the front wall and communicates with the ash pit. The chambers 14 and 15 are separated by means of a horizontal arcuate wall 2O consisting of a plurality of substantially triangular flue sections 21 extending from the front to the rear wall of the furnace. The upper reduction chamber14 `is provided with a vertical front wall 22 extending from the upper walls of the liue sections lto a point below the top -wall 13 of l the furnace and spaced from the front wall 10 ofv the furnace providing a vertical flue or passage 23. Thel flue vsections at vthe rear end communicate with the fuel `combustion chamber 15 and at their forward ends communicate with the vertical iue or passage 23. The upper end of the vertical flue or passage 23 communicates with the reduction chamber 14 at its upper forwardend. The reduction chamber is provided adjacent the rear wall 11 of the furnace with avvertical wall 24 terminating atits upper end below the top wall 1,3 and provided with a central reduced section 25 extending upwardly to the top wall to provide at opposite sides draft passages 26. A draft stack or chimney 27 having an inner tubular lining 28 isprovided at the rear of the furnaceand said rlining extends an apfront wall in alignment with the flue sections V2l and the same is normally closed by doors 30, The side walls 12 of the furnace are provided with combined clean-out and draft passages 3l, which extend therethrough and communicate with the reduction chamber at the lower end` thereof, said passages Si closing at ltheir outer ends by means of doors A receiving and supporting basket for the matter to be reduced, designated generally at 313, is suspended within the reduction chamber. rlhe receiving and supporting basket consists of a plurality of substantially U-shaped rods 34 arranged in spaced longitudinal alignment from front to rear `within they reduction chamber, said rods being provided at the upper free ends of their side arms with eyes 35 arranged -in alignment. ifi ,pair of'supporting rods 56 pass through they aligned eyes of ytheopposite side arms and vare sup` ported from theside walls l2 by eyebolts 37. Alternate side armsof the U-shaped rods 34 are connected to the side straps 38 by U-bolts 39, while the free rods are connected `U-.bolts 40 to a bottom strap /l-lertending central-ly Abeneath the same and protruding forwardlly through aligned openings 42 and 43 .in the -walls 22 and 10. The outer extremity of the bottom strap 4l is pivotally connected as at 44 to a shaking lever 45. By this arrangement movement of ithe shaking leverf45 will effect oscillations of the free rods 34 relative to .the remaining rods 34 which are yconnected to the sidestraps 38. The top wall 13 of the furnace is provided withinlet Lopenings 46 normally closed by covers 47 which when removed permit of the filling of the basket with the refuse Vor waste matter to be reduced. c

In -use and operation -of :the incinerator, the refuse or waste .matter to be reduced isdumped into the basket 33 through the rinlet openings 46'and the covers 47 are then placed tliereover. The heat from the fuel combust-ion chamber' 15 ywill be drawn throughthe i'iue sectionsf2l from thcfrear of the combustion chamber, thence over the same and beneath the reduction chamber to the front wall of the furnace where it is led upwardly :through the vertical lue or draft passage 23 and carried into the reduction chamber 14, thence to the draft passages 26 downwardly into the lower end of the rlining 28 and out of the stack. It will thus be seen that duringthe passage of the heat zthrough the yHue sections 2l a part thereof 'will radiate `through vthe upper walls of the flue sections to `.the lower end of the reduction chamber at the `under side of the bas- Vliet, Ywhile fthe remainder will be `drawn throught-he vertical flue 23 around zthe sides .Qffthe basket. This action tends todry out fthe outer strata or layer of the refuse to a large dcgl'i, While the inner strata or layers lsages are opened to create a supplemental draft and furnish suflicient oxygen to the reduction chamber to effect the ignition and L,combustion of the dried out strata or layers.

rhe shaking lever 45 is periodically actuated to oscillate the basket and agitate the to canse the ashes to fall `onto the dividing wall 2O or upper walls of the flue sections Awhere it can be readily removed through the clean-out passages. ln the yol'ieration of the incinerator no attempt ismade at burning the moisture or gases generated by the drying action as the same are carr'cd off by the natural draft. However, after the furnace has been in operation it will be found that the spaces between the front walls y1() and 22 and therearwalls ll and 24 will act as retorts toconsume the greater portion-ofthe gases generated.

The structure of the 'basket admits of the removal and renewal of one or more of the elements ronstituting the saine when dcstroyed or unfit for use, wliilefthe sectional formation ofthe horizontal flue wall 2O permits of the renewal of parts or sections which become burned out or broken.

I claim:

l. ln an incinerating furnace, a fuel combustion chamber, a superposed reduction chamber, a draft stack communicating' with the latter, a flue leading from the combustion rchamber and extending beneath the reduction chamber and having communication with said reduction chamber at its upper end, and means suspended within said reduction chamber 'for receiving and supporting 'the waste lmatterv therein.

2, In an meiner-'ating furnace, a fuel coni- `bustion chamber', a superposed reduction chamber, Aa draft stack `communica-ting with the latter, a flue leading from the combustion chamber andleiitcnding beneath the reduction chamber and having communicaytion with said reduction-chamber at its upper end, and a basket-like receptacle lsuspended within the reduction chamber for receiving and supporting 'the waste `matter to be reduced.

3. ln an incinerating furnace, a'fuel combustion chamber, a superposed reduction chamber, 4a draft stack communicating with the latter, a `fine leading from the combustion chamber and yextending beneath the reduction chamber and having communication with said reduction chamber at its upperend, a basket-likey receptacle suspended within the reduction chamber for receiving and-supporting the waste mattertobe reduced, and means connected with said receptacle and arranged eXteriorly ofthe furnace for oscillating the basket whereby yperiodical agitation. of the mass may be effected.

4l. In an incinerating furnace, a furnace body comprising upper and lower compartments constituting respectively an upperrcduction chamber and a lower combustion chamber, a draft stack havingcommunication with the reduction chamber, a horizontal flue extending over the combustion chamber and under the reduction chamber, a vertical flue communicating with the horizontal flue and leading` to the upper end of the reduction chamber, and means suspended within the reduction chamber for receiving and supporting the waste matterl to be reduced.

5. In an incincrating furnace, a furnace body comprising upper and lower compartments constituting respectively an upper reduction chamber and a lower combustion chamber, a draft stack having communication with the rear end of the reduction chamber, a horizontal flue extending over the combustion chamber and under the reduction chamber, a vertical flue communicating with the forward end of the herizontal flue andleading to the upper end of the reduction chambe and means suspended within the reduction chamber for receiving and supporting the waste matter to be reduced.

6. ln an incinerating furnace, a furnace body comp ising upper and lower compartments constituting respectively an upperreduction chamber and a lower combustion chamber, a draft stack having communicaltion with the reduction chamber, a horizontal flue extending over the combustion chamber and under the reduction chamber, a vertical flue communicating with the hori- Zontal flue and leading to the upper end of the reduction chamber, means suspended within the reduction chamber for receiving and supporting the waste matter to bc reduced, and actuating means for oscillating said receiving and supporting means whereby to effect periodical dislodgment of the ashes and presentation of the unreduced strata of the waste matter to the action of heat and flame.

7. In an incinerating furnace, a furnace body comprising` upper and lower compartments constituting respectively an upper reduction chamber and a lower Combustion chamber, a draft stack having communication with the reduction chamber, a horizontal iiue extending over the combustion chamber and under the reduction chamber, a vertical flue communicating` 'with the horizontal flue and leading to the upper end ofthe reduction chamber, combined clean-out and draft doors communicating with the lower end of the reduction chamber, and means suspended within the reduction chamber for receiving and vsupporting the waste matter to be reduced.

S. ln an incinerating furnace, a fuel combustion chamber, a superposed reduction chamber, a communicating flue therebetween and means for receiving and supporting within the reduction chamber the waste matter to be reduced,y consisting of a basket-like receptacle comprisingk a plurality of aligned U-shaped rods supported at their upper ends from opposite sides of said reduction chamber, means connected with alternate rods the sides thereof for holding the same against movement, and means connected with the lower ends of the remaining U- shaped rods and extending through the front wall of the furnace for actuating the same to effect their oscillation relative to the other rods, as and for the purpose specified.

PATRICK FRANCIS MGMAHON. 

